4) check the java with http://www.microsoft.com/downloads/details.aspx?FamilyID=4e38f4f9-ce7e-4271-8836-a7d7293a992f&DisplayLang=en
Update java by windows update or in case of Sun Microsystems Java Runtime, see http://www.java.com

How to install JRE

Note: Following a recent settlement Microsoft are now able to issue security updates for their Java VM until Dec 31, 2007. Originally support was due to end in September 2004.